Publications

Below is a list of available NOROCK peer reviewed and published science. If you are in search of a specific publication and cannot find it below or through a search, please contact twojtowicz@usgs.gov.

Filter Total Items: 1322

Publication Type

Node Release Date

States

Fulltext search

June 23, 1976

Mapping of mountain soils west of Denver, Colorado, for landuse planning Mapping of mountain soils west of Denver, Colorado, for landuse planning

No abstract available.

Authors

P. W. Schmidt, Kenneth L. Pierce

Ecosystems Mission Area, Northern Rocky Mountain Science Center

June 23, 1976

Obsidian hydration dating and correlation of Bull Lake and Pinedale Glaciations near West Yellowstone, Montana Obsidian hydration dating and correlation of Bull Lake and Pinedale Glaciations near West Yellowstone, Montana

The ages of the last two glaciations near West Yellowstone, Montana, can be calculated by obsidian hydration techniques that are calibrated by K-Ar dating of obsidian-bearing lava flows. The average age of glacial abrasion of obsidian in the Pinedale terminal moraines is about 30,000 yr, with most age measurements between 20,000 and 35,000 yr. For the Bull Lake moraines, it is about 140...

Authors

Kenneth L. Pierce, J. Obradovich, Irving Friedman

Ecosystems Mission Area, Northern Rocky Mountain Science Center